9 3-inch bars 2 1/4 cups all-purpose flour 1/2 tsp baking soda 1/2 tsp table salt 12 tbsp unsalted butter 1 cup light brown sugar 1/2 cup granulated sugar 1 large egg 1 egg yolk 1 tablespoon pure vanilla extract 1 cup semi-sweet chocolate chips 1 cup Heath toffee bits 1 cup chopped peanuts